Core Router Outage
Incident Report for I.T Communications Limited
Resolved
Yesterday we removed the router from service and the network returned to normal.

Before lockdown we had plans to replace the existing routers and switches which had been in service since 2016.
This was then put on hold due to lock down, however due to the recent router issue, we are going to bring these plans forward and implement next week.

We will make an announcement next week with our plans.

We will close this report and open a new one next week.
Posted Jul 25, 2020 - 11:29 BST
Investigating
The reboot of the Router did not resolve the issue. We have therefore removed the router from its core routing of traffic and continue to investigate the issue.

Whilst the router has been taken out of service, services should now continue but be considered at risk with no network redudancy.

If its proven to be a router hardware fault, we will replace the router.
Posted Jul 24, 2020 - 16:25 BST
Update
We are seeing a issue with this router dropping packets randomly. its been up for a long time without a reboot. To safe gard the network and to ensure the network remains stable. We will need to do an emergnecy restart of the core router at Volta.

I understand its not ideal to do this during office hours. However, I would prefer customers to have a fault free service sooner then wait for out of hours reboot.

The Router will go down for 5-10 minutes, traffic will move over to the other router until its back up.
Posted Jul 24, 2020 - 14:36 BST
Monitoring
The outage of the router was cuased due to London Links Network going down and coming back up every 10 seconds.

The rotuer was trying to route around the issue and then it would come back up and the same process started again.

London Links is now back up and we can see peering sessions establish.

We will monitor network to see if this issue returns.
Posted Jul 24, 2020 - 13:29 BST
Investigating
Our alerrting system was just triggered as we appear to have lost conenction to our core router at Volta Data Centre.

Services should not be affected as traffic will re-route to our other router at Sov House.

Update to follow.
Posted Jul 24, 2020 - 13:16 BST
This incident affected: Network Infrastructure (Volta Brocade Router).